Home / 286,656.45-429,928.17-272,431.23

Finding the Fourth Proportional to 286,656.45, 429,928.17 and 272,431.23

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Solution

The fourth proportional to 286,656.45, 429,928.17 and 272,431.23 is: 408,593.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,656.45 : 429,928.17 = 272,431.23 : x
  2. Step 2: Convert to fraction form
    286,656.45/429,928.17 = 272,431.23/x
  3. Step 3: Cross multiply
    286,656.45x = 429,928.17 × 272,431.23
  4. Step 4: Simplify right side
    286,656.45x = 117,125,860,164.75
  5. Step 5: Solve for x
    x = 117,125,860,164.75/286,656.45
  6. Step 6: Final answer
    x = 408,593.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.